<template>
  <transition name="slide">
    <music-list :songs="songs" :title="title" :bgImage="bgImage"></music-list>
  </transition>
</template>
<script>
import { mapGetters } from 'vuex'
import { getSingerDetail } from 'api/recommend'
import MusicList from 'components/music-list/music-list'
import { ERR_OK } from 'api/config'
import { createSong } from 'common/js/song'

export default {
  name: 'Singer-Detail',
  data () {
    return {
      songs: []
    }
  },
  computed: {
    ...mapGetters([
      'singer'
    ]),
    title () {
      if (this.singer) {
        return this.singer.name
      }
    },
    bgImage () {
      if (this.singer) {
        return this.singer.avatar
      }
    }
  },
  created () {
    this._getDetail()
  },
  methods: {
    _getDetail () {
      if (this.singer.id === undefined) {
        this.$router.push('/singer')
        return
      }
      getSingerDetail(this.singer.id).then((res) => {
        if (res.code === ERR_OK) {
          this.songs = this._normalizeSongs(res.data.list)
        }
      })
    },
    _normalizeSongs (list) {
      let ret = []
      list.forEach(item => {
        let {musicData} = item
        if (musicData.songid && musicData.albumid) {
          ret.push(createSong(musicData))
        }
      })
      return ret
    }
  },
  components: {
    MusicList
  }
}
</script>
<style lang='stylus' scoped>
@import '~common/stylus/variable'
  .slide-enter-active, .slide-leave-active
    transition: all 0.3s
  .slide-enter, .slide-leave-to
     transform: translate3d(100%, 0, 0)
</style>
